/**
 * Vibrant Innovations — Homepage
 *
 * Built on the same tokens as theme.css, so it follows light/dark without
 * any extra work. Layout is CSS grid with clamp() sizing: no fixed widths,
 * nothing to re-tune per breakpoint.
 */

/* ── Shared section rhythm ─────────────────────────────────────────── */
.vi-section { padding: clamp(3.5rem, 8vw, 6.5rem) 0; }
.vi-section-head { max-width: 660px; margin: 0 auto clamp(2rem, 4vw, 3.25rem); text-align: center; }
.vi-eyebrow {
  display: inline-block; font-size: .74rem; font-weight: 700; letter-spacing: .16em;
  text-transform: uppercase; color: var(--vi-accent-strong);
  background: var(--vi-accent-soft); padding: .4rem .9rem; border-radius: 50px; margin-bottom: 1rem;
}
.vi-section-head h2 {
  font-family: var(--heading-font); font-weight: 800; color: var(--heading-color);
  font-size: clamp(1.7rem, 3.6vw, 2.6rem); line-height: 1.15; margin-bottom: .75rem;
}
.vi-section-head p { color: var(--vi-muted); font-size: 1.02rem; line-height: 1.7; margin: 0; }

/* ── Hero ──────────────────────────────────────────────────────────── */
.vi-hero { position: relative; overflow: hidden; padding: clamp(3.5rem, 9vw, 7rem) 0 clamp(3rem, 7vw, 5.5rem); }
.vi-hero::before {
  content: ''; position: absolute; inset: 0; z-index: 0;
  background:
    radial-gradient(1100px 520px at 12% -10%, var(--vi-accent-soft), transparent 62%),
    radial-gradient(820px 420px at 92% 8%, rgba(124, 92, 191, .10), transparent 60%);
}
.vi-hero > .container { position: relative; z-index: 1; }
.vi-hero-grid { display: grid; grid-template-columns: 1.08fr .92fr; gap: clamp(2rem, 5vw, 4rem); align-items: center; }
@media (max-width: 991px) { .vi-hero-grid { grid-template-columns: 1fr; } }

.vi-hero h1 {
  font-family: var(--heading-font); font-weight: 800; color: var(--heading-color);
  font-size: clamp(2.1rem, 5.4vw, 3.6rem); line-height: 1.08; letter-spacing: -.02em; margin-bottom: 1.15rem;
}
.vi-hero h1 .accent {
  background: linear-gradient(120deg, var(--vi-accent-strong), var(--vi-accent));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.vi-hero-lead { font-size: clamp(1rem, 1.6vw, 1.15rem); line-height: 1.75; color: var(--vi-muted); max-width: 52ch; margin-bottom: 1.9rem; }

.vi-cta-row { display: flex; flex-wrap: wrap; gap: .85rem; margin-bottom: 2.1rem; }
.vi-btn {
  display: inline-flex; align-items: center; gap: .55rem;
  padding: .85rem 1.7rem; border-radius: 50px; font-weight: 600; font-size: .96rem;
  text-decoration: none; border: 1px solid transparent; cursor: pointer;
  transition: transform var(--vi-fast) var(--vi-spring), box-shadow var(--vi-fast) var(--vi-ease), background-color var(--vi-fast) var(--vi-ease);
}
.vi-btn-primary { background: var(--vi-accent); color: #12251a; box-shadow: var(--vi-shadow-md); }
.vi-btn-primary:hover { background: var(--vi-accent-strong); color: #12251a; transform: translateY(-2px); box-shadow: var(--vi-shadow-lg); }
.vi-btn-ghost { background: transparent; color: var(--default-color); border-color: var(--vi-line); }
.vi-btn-ghost:hover { border-color: var(--vi-accent); color: var(--vi-accent-strong); transform: translateY(-2px); }

.vi-trust { display: flex; flex-wrap: wrap; gap: 1.5rem; align-items: center; font-size: .87rem; color: var(--vi-muted); }
.vi-trust span { display: inline-flex; align-items: center; gap: .45rem; }
.vi-trust i { color: var(--vi-accent-strong); font-size: 1.05rem; }

.vi-hero-media { position: relative; }
.vi-hero-media img {
  width: 100%; height: auto; border-radius: 20px; box-shadow: var(--vi-shadow-lg); display: block;
  aspect-ratio: 4 / 3; object-fit: cover;
}
.vi-hero-badge {
  position: absolute; bottom: -18px; left: -18px;
  background: var(--vi-surface); border: 1px solid var(--vi-line); border-radius: 15px;
  padding: .9rem 1.15rem; box-shadow: var(--vi-shadow-lg); display: flex; align-items: center; gap: .75rem;
}
@media (max-width: 575px) { .vi-hero-badge { left: 8px; bottom: -14px; } }
.vi-hero-badge i { font-size: 1.5rem; color: var(--vi-accent-strong); }
.vi-hero-badge b { display: block; font-size: 1.15rem; color: var(--heading-color); line-height: 1.1; }
.vi-hero-badge small { color: var(--vi-muted); font-size: .78rem; }

/* ── Stats ─────────────────────────────────────────────────────────── */
.vi-stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 1rem; }
.vi-stat {
  text-align: center; padding: 1.6rem 1rem; border-radius: var(--vi-radius);
  background: var(--vi-surface); border: 1px solid var(--vi-line);
  transition: transform var(--vi-base) var(--vi-ease), box-shadow var(--vi-base) var(--vi-ease);
}
.vi-stat:hover { transform: translateY(-4px); box-shadow: var(--vi-shadow-md); }
.vi-stat i { font-size: 1.5rem; color: var(--vi-accent-strong); margin-bottom: .5rem; display: block; }
.vi-stat .n { font-family: var(--heading-font); font-size: clamp(1.7rem, 3.4vw, 2.3rem); font-weight: 800; color: var(--heading-color); line-height: 1; }
.vi-stat .l { font-size: .84rem; color: var(--vi-muted); margin-top: .4rem; }

/* ── Services ──────────────────────────────────────────────────────── */
.vi-cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(290px, 1fr)); gap: 1.4rem; }
.vi-card {
  background: var(--vi-surface); border: 1px solid var(--vi-line); border-radius: var(--vi-radius);
  padding: 1.9rem 1.6rem; position: relative; overflow: hidden;
  transition: transform var(--vi-base) var(--vi-ease), box-shadow var(--vi-base) var(--vi-ease), border-color var(--vi-base) var(--vi-ease);
}
.vi-card::after {
  content: ''; position: absolute; left: 0; top: 0; height: 3px; width: 100%;
  background: linear-gradient(90deg, var(--vi-accent), var(--vi-accent-strong));
  transform: scaleX(0); transform-origin: left; transition: transform var(--vi-base) var(--vi-ease);
}
.vi-card:hover { transform: translateY(-7px); box-shadow: var(--vi-shadow-lg); border-color: var(--vi-accent); }
.vi-card:hover::after { transform: scaleX(1); }
.vi-card-icon {
  width: 52px; height: 52px; border-radius: 14px; display: grid; place-items: center;
  background: var(--vi-accent-soft); color: var(--vi-accent-strong); font-size: 1.5rem; margin-bottom: 1.1rem;
}
.vi-card h3 { font-family: var(--heading-font); font-size: 1.14rem; font-weight: 700; color: var(--heading-color); margin-bottom: .6rem; }
.vi-card p { font-size: .93rem; line-height: 1.7; color: var(--vi-muted); margin-bottom: 1rem; }
.vi-card ul { list-style: none; padding: 0; margin: 0 0 1rem; }
.vi-card ul li { font-size: .86rem; color: var(--vi-muted); padding: .2rem 0 .2rem 1.3rem; position: relative; }
.vi-card ul li::before { content: '\2713'; position: absolute; left: 0; color: var(--vi-accent-strong); font-weight: 700; }
.vi-card-link { font-size: .88rem; font-weight: 600; color: var(--vi-accent-strong); text-decoration: none; display: inline-flex; align-items: center; gap: .35rem; }
.vi-card-link:hover { gap: .6rem; color: var(--vi-accent-strong); }

/* ── Approach ──────────────────────────────────────────────────────── */
.vi-steps { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 1.4rem; counter-reset: step; }
.vi-step { position: relative; padding: 1.7rem 1.4rem; border-radius: var(--vi-radius); background: var(--vi-raised); border: 1px solid var(--vi-line); }
.vi-step::before {
  counter-increment: step; content: counter(step, decimal-leading-zero);
  font-family: var(--heading-font); font-size: 2.1rem; font-weight: 800;
  color: var(--vi-accent); opacity: .38; line-height: 1; display: block; margin-bottom: .6rem;
}
.vi-step h4 { font-size: 1.02rem; font-weight: 700; color: var(--heading-color); margin-bottom: .45rem; }
.vi-step p { font-size: .9rem; line-height: 1.65; color: var(--vi-muted); margin: 0; }

/* ── Work ──────────────────────────────────────────────────────────── */
.vi-work { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 1.3rem; }
.vi-work-item {
  position: relative; border-radius: var(--vi-radius); overflow: hidden; aspect-ratio: 4 / 3;
  background: var(--vi-raised); display: block; text-decoration: none;
}
.vi-work-item img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s var(--vi-ease); }
.vi-work-item:hover img { transform: scale(1.07); }
.vi-work-cap {
  position: absolute; inset: auto 0 0 0; padding: 1.6rem 1.2rem 1.1rem;
  background: linear-gradient(to top, rgba(8, 14, 11, .92), transparent);
  color: #fff;
}
.vi-work-cap h4 { font-size: 1.02rem; font-weight: 700; margin: 0 0 .2rem; color: #fff; }
.vi-work-cap p { font-size: .82rem; margin: 0; opacity: .82; }
.vi-work-tag {
  position: absolute; top: .85rem; left: .85rem; z-index: 2;
  background: rgba(255,255,255,.92); color: #12251a; font-size: .7rem; font-weight: 700;
  text-transform: uppercase; letter-spacing: .06em; padding: .25rem .65rem; border-radius: 50px;
}

/* ── Testimonials ──────────────────────────────────────────────────── */
.vi-quote {
  background: var(--vi-surface); border: 1px solid var(--vi-line); border-radius: var(--vi-radius);
  padding: 2rem 1.7rem; height: 100%; display: flex; flex-direction: column; gap: 1rem;
}
.vi-quote .stars { color: #f0b429; font-size: .9rem; letter-spacing: .1em; }
.vi-quote blockquote { font-size: .96rem; line-height: 1.8; color: var(--default-color); margin: 0; flex: 1; }
.vi-quote figcaption { display: flex; align-items: center; gap: .8rem; }
.vi-quote figcaption img { width: 46px; height: 46px; border-radius: 50%; object-fit: cover; }
.vi-quote figcaption b { display: block; font-size: .93rem; color: var(--heading-color); }
.vi-quote figcaption small { color: var(--vi-muted); font-size: .8rem; }

/* ── Closing call to action ────────────────────────────────────────── */
.vi-cta {
  border-radius: clamp(16px, 3vw, 26px); padding: clamp(2.4rem, 5.5vw, 4rem) clamp(1.5rem, 4vw, 3.2rem);
  background: linear-gradient(135deg, #2d5a4f 0%, #4a8a76 55%, #7fb28b 100%);
  color: #fff; text-align: center; position: relative; overflow: hidden;
}
.vi-cta h2 { font-family: var(--heading-font); font-weight: 800; font-size: clamp(1.6rem, 3.8vw, 2.5rem); color: #fff; margin-bottom: .8rem; }
.vi-cta p { font-size: 1.02rem; line-height: 1.7; opacity: .93; max-width: 56ch; margin: 0 auto 1.8rem; }
.vi-cta .vi-btn-primary { background: #fff; color: #1d3b31; }
.vi-cta .vi-btn-primary:hover { background: #eef6f0; color: #1d3b31; }
.vi-cta .vi-btn-ghost { color: #fff; border-color: rgba(255,255,255,.55); }
.vi-cta .vi-btn-ghost:hover { background: rgba(255,255,255,.12); color: #fff; border-color: #fff; }
.vi-cta .vi-cta-row { justify-content: center; margin-bottom: 0; }

/* =====================================================================
   PARTNER LOGOS — homepage strip; scrolls gently when there are many
   ===================================================================== */
.vi-logos-section { padding: 0 0 clamp(2.5rem, 6vw, 4.5rem); }
.vi-logos-title {
  text-align: center; font-size: .78rem; font-weight: 700; letter-spacing: .14em;
  text-transform: uppercase; color: var(--vi-muted); margin-bottom: 1.4rem;
}
.vi-logos { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; justify-content: center; gap: .9rem; }
/* White tiles keep dark logos readable in dark mode too */
.vi-logo {
  display: grid; place-items: center; width: 168px; height: 76px; padding: .85rem 1.2rem;
  border-radius: var(--vi-radius-sm); background: #fff; border: 1px solid var(--vi-line);
  transition: transform var(--vi-base) var(--vi-ease), box-shadow var(--vi-base) var(--vi-ease);
}
.vi-logo img {
  max-width: 100%; max-height: 44px; object-fit: contain; filter: grayscale(1); opacity: .7;
  transition: filter var(--vi-base) var(--vi-ease), opacity var(--vi-base) var(--vi-ease);
}
a.vi-logo:hover, a.vi-logo:focus-visible { transform: translateY(-3px); box-shadow: var(--vi-shadow-md); }
.vi-logo:hover img, .vi-logo:focus-visible img { filter: none; opacity: 1; }

.vi-marquee {
  display: flex; overflow: hidden; padding: 6px 0;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
          mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
}
.vi-marquee .vi-logos { flex: 0 0 auto; flex-wrap: nowrap; padding-right: .9rem; animation: vi-marquee var(--vi-marquee-duration, 36s) linear infinite; }
.vi-marquee:hover .vi-logos, .vi-marquee:focus-within .vi-logos { animation-play-state: paused; }
@keyframes vi-marquee { to { transform: translateX(-100%); } }
@media (prefers-reduced-motion: reduce) {
  .vi-marquee { -webkit-mask-image: none; mask-image: none; }
  .vi-marquee .vi-logos { animation: none; flex: 1 1 auto; flex-wrap: wrap; justify-content: center; padding-right: 0; }
  .vi-marquee .vi-logos[aria-hidden="true"] { display: none; }
}

/* =====================================================================
   TEAM — About page
   ===================================================================== */
.vi-team { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 1.4rem; }
.vi-member {
  text-align: center; background: var(--vi-surface); border: 1px solid var(--vi-line); border-radius: var(--vi-radius);
  padding: 1.9rem 1.4rem 1.6rem;
  transition: transform var(--vi-base) var(--vi-ease), box-shadow var(--vi-base) var(--vi-ease), border-color var(--vi-base) var(--vi-ease);
}
.vi-member:hover { transform: translateY(-6px); box-shadow: var(--vi-shadow-lg); border-color: var(--vi-accent); }
.vi-member-photo {
  width: 112px; height: 112px; margin: 0 auto 1.1rem; border-radius: 50%; overflow: hidden;
  display: grid; place-items: center; background: var(--vi-accent-soft);
  box-shadow: 0 0 0 4px var(--vi-surface), 0 0 0 6px var(--vi-accent);
  transition: transform var(--vi-base) var(--vi-spring);
}
.vi-member:hover .vi-member-photo { transform: scale(1.04); }
.vi-member-photo img { width: 100%; height: 100%; object-fit: cover; }
.vi-member-photo span { font-family: var(--heading-font); font-weight: 800; font-size: 2rem; color: var(--heading-color); }
.vi-member h3 { font-family: var(--heading-font); font-size: 1.08rem; font-weight: 700; color: var(--heading-color); margin: 0 0 .25rem; }
.vi-member-role { font-size: .85rem; font-weight: 600; color: var(--vi-muted); margin: 0 0 .7rem; }
.vi-member-bio { font-size: .9rem; line-height: 1.65; color: var(--vi-muted); margin: 0 0 1rem; }
.vi-member-link {
  display: inline-grid; place-items: center; width: 38px; height: 38px; border-radius: 50%;
  border: 1px solid var(--vi-line); color: var(--default-color); text-decoration: none;
  transition: background-color var(--vi-fast) var(--vi-ease), color var(--vi-fast) var(--vi-ease), border-color var(--vi-fast) var(--vi-ease);
}
.vi-member-link:hover, .vi-member-link:focus-visible { background: #0a66c2; border-color: #0a66c2; color: #fff; }

/* =====================================================================
   INSIGHTS — article cards, list page, article page
   ===================================================================== */
.vi-page-hero { position: relative; overflow: hidden; padding: clamp(3rem, 7vw, 5rem) 0 clamp(1rem, 3vw, 2rem); }
.vi-page-hero::before {
  content: ''; position: absolute; inset: 0; z-index: 0;
  background: radial-gradient(900px 420px at 15% -20%, var(--vi-accent-soft), transparent 62%),
              radial-gradient(700px 360px at 90% 0%, rgba(124, 92, 191, .08), transparent 60%);
}
.vi-page-hero > .container { position: relative; z-index: 1; }
.vi-page-hero h1 {
  font-family: var(--heading-font); font-weight: 800; color: var(--heading-color);
  font-size: clamp(2rem, 4.8vw, 3.1rem); line-height: 1.1; letter-spacing: -.02em; margin-bottom: .8rem;
}
.vi-page-hero .vi-section-head p { font-size: 1.08rem; }

.vi-chips { display: flex; flex-wrap: wrap; justify-content: center; gap: .5rem; margin-bottom: 2.2rem; }
.vi-chip {
  padding: .5rem 1.05rem; border-radius: 50px; border: 1px solid var(--vi-line); background: var(--vi-surface);
  color: var(--default-color); font-size: .87rem; font-weight: 500; text-decoration: none;
  transition: border-color var(--vi-fast) var(--vi-ease), background-color var(--vi-fast) var(--vi-ease), transform var(--vi-fast) var(--vi-spring);
}
.vi-chip:hover { border-color: var(--vi-accent); color: var(--heading-color); transform: translateY(-1px); }
.vi-chip.is-active { background: var(--vi-accent); border-color: var(--vi-accent); color: #12251a; }
.vi-chip small { opacity: .65; margin-left: .2rem; }

.vi-posts { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 1.5rem; }
.vi-post {
  position: relative; display: flex; flex-direction: column; overflow: hidden;
  background: var(--vi-surface); border: 1px solid var(--vi-line); border-radius: var(--vi-radius);
  transition: transform var(--vi-base) var(--vi-ease), box-shadow var(--vi-base) var(--vi-ease), border-color var(--vi-base) var(--vi-ease);
}
.vi-post:hover, .vi-post:focus-within { transform: translateY(-6px); box-shadow: var(--vi-shadow-lg); border-color: var(--vi-accent); }
.vi-post-media { display: block; aspect-ratio: 16 / 9; overflow: hidden; background: var(--vi-raised); }
.vi-post-media img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s var(--vi-ease); }
.vi-post:hover .vi-post-media img { transform: scale(1.05); }
.vi-post-ph {
  display: grid; place-items: center; width: 100%; height: 100%; font-size: 2.4rem; color: var(--vi-accent-strong);
  background: linear-gradient(135deg, var(--vi-accent-soft), transparent 80%);
}
.vi-post-body { display: flex; flex-direction: column; gap: .6rem; flex: 1; padding: 1.35rem 1.4rem 1.5rem; }
.vi-post-meta { display: flex; flex-wrap: wrap; align-items: center; gap: .35rem 1rem; font-size: .8rem; color: var(--vi-muted); }
.vi-post-meta i { margin-right: .2rem; }
.vi-post-cat {
  font-size: .68rem; font-weight: 700; letter-spacing: .07em; text-transform: uppercase;
  color: var(--heading-color); background: var(--vi-accent-soft); padding: .22rem .6rem; border-radius: 50px;
}
.vi-post-title { font-family: var(--heading-font); font-size: 1.14rem; font-weight: 700; line-height: 1.35; margin: 0; }
.vi-post-title a {
  color: var(--heading-color); text-decoration: none;
  background: linear-gradient(currentColor, currentColor) 0 100% / 0 1px no-repeat;
  transition: background-size var(--vi-base) var(--vi-ease);
}
.vi-post-title a::after { content: ''; position: absolute; inset: 0; }   /* whole card is clickable */
.vi-post:hover .vi-post-title a { background-size: 100% 1px; }
.vi-post-body p { font-size: .92rem; line-height: 1.7; color: var(--vi-muted); margin: 0; flex: 1; }
.vi-post.is-featured { grid-column: 1 / -1; display: grid; grid-template-columns: 1.15fr 1fr; }
.vi-post.is-featured .vi-post-media { aspect-ratio: auto; min-height: 320px; }
.vi-post.is-featured .vi-post-body { justify-content: center; padding: clamp(1.5rem, 4vw, 2.6rem); }
.vi-post.is-featured .vi-post-title { font-size: clamp(1.4rem, 2.6vw, 1.95rem); }
@media (max-width: 767px) {
  .vi-post.is-featured { grid-template-columns: 1fr; }
  .vi-post.is-featured .vi-post-media { aspect-ratio: 16 / 9; min-height: 0; }
}

.vi-pager { display: flex; justify-content: center; align-items: center; flex-wrap: wrap; gap: .8rem; margin-top: 2.6rem; }
.vi-pager-count { color: var(--vi-muted); font-size: .9rem; }

.vi-empty { text-align: center; max-width: 560px; margin: 0 auto; padding: 2rem 1rem; }
.vi-empty > i { display: inline-grid; place-items: center; width: 76px; height: 76px; border-radius: 50%; font-size: 2.1rem; color: var(--vi-accent-strong); background: var(--vi-accent-soft); margin-bottom: 1.1rem; }
.vi-empty h1, .vi-empty h2 { font-family: var(--heading-font); font-weight: 800; color: var(--heading-color); font-size: clamp(1.5rem, 3.4vw, 2.1rem); margin-bottom: .7rem; }
.vi-empty p { color: var(--vi-muted); line-height: 1.7; margin-bottom: 1.5rem; }

.vi-newsletter-band {
  display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(1.5rem, 4vw, 3rem); align-items: center;
  padding: clamp(1.8rem, 5vw, 3rem); border-radius: clamp(16px, 3vw, 24px);
  background: radial-gradient(620px 320px at 0% 0%, var(--vi-accent-soft), transparent 70%), var(--vi-surface);
  border: 1px solid var(--vi-line); box-shadow: var(--vi-shadow-md);
}
@media (max-width: 767px) { .vi-newsletter-band { grid-template-columns: 1fr; } }
.vi-newsletter-band .vi-newsletter-title { font-family: var(--heading-font); font-weight: 800; color: var(--heading-color); font-size: clamp(1.4rem, 3vw, 2rem); margin: 0 0 .5rem; }
.vi-newsletter-band p { color: var(--vi-muted); line-height: 1.7; margin: 0; }

/* ── Article ───────────────────────────────────────────────────────── */
.vi-reading-progress {
  position: fixed; inset: 0 0 auto 0; height: 3px; z-index: 1100; transform: scaleX(0); transform-origin: 0 50%;
  background: linear-gradient(90deg, var(--vi-accent), var(--vi-accent-strong));
}
.vi-article-head { padding: clamp(2.5rem, 6vw, 4rem) 0 1.75rem; }
.vi-article-head .container { max-width: 860px; }
.vi-crumbs { display: flex; flex-wrap: wrap; align-items: center; gap: .45rem; font-size: .85rem; color: var(--vi-muted); margin-bottom: 1.1rem; }
.vi-crumbs a { color: var(--vi-muted); text-decoration: none; }
.vi-crumbs a:hover { color: var(--heading-color); }
.vi-crumbs i { font-size: .7rem; }
.vi-article-head h1 {
  font-family: var(--heading-font); font-weight: 800; color: var(--heading-color);
  font-size: clamp(1.9rem, 4.6vw, 3rem); line-height: 1.12; letter-spacing: -.02em; margin-bottom: .9rem;
}
.vi-article-lead { font-size: clamp(1.05rem, 1.8vw, 1.22rem); line-height: 1.7; color: var(--vi-muted); margin-bottom: 1.2rem; }
.vi-preview-banner {
  display: flex; flex-wrap: wrap; align-items: center; gap: .6rem; margin-bottom: 1.4rem; padding: .7rem 1rem;
  border-radius: var(--vi-radius-sm); background: #fff4d6; color: #5c4400; border: 1px solid #f0d78c; font-size: .9rem;
}
.vi-preview-banner a { color: inherit; font-weight: 700; margin-left: auto; }
.vi-article-cover { max-width: 1100px; margin: 0 auto clamp(1.8rem, 4vw, 2.8rem); padding: 0 12px; }
.vi-article-cover img { display: block; width: 100%; height: auto; aspect-ratio: 2 / 1; object-fit: cover; border-radius: 20px; box-shadow: var(--vi-shadow-lg); }
.vi-article-grid {
  max-width: 860px; margin: 0 auto; padding-bottom: clamp(2.5rem, 6vw, 4rem);
  display: grid; grid-template-columns: 48px minmax(0, 1fr); gap: clamp(1.2rem, 3vw, 2.4rem);
}
.vi-share { position: sticky; top: 110px; align-self: start; display: flex; flex-direction: column; gap: .55rem; }
.vi-share a, .vi-share button {
  display: grid; place-items: center; width: 44px; height: 44px; border-radius: 50%; padding: 0;
  border: 1px solid var(--vi-line); background: var(--vi-surface); color: var(--default-color); font-size: 1.05rem;
  text-decoration: none; cursor: pointer;
  transition: background-color var(--vi-fast) var(--vi-ease), color var(--vi-fast) var(--vi-ease), transform var(--vi-fast) var(--vi-spring), border-color var(--vi-fast) var(--vi-ease);
}
.vi-share a:hover, .vi-share button:hover, .vi-share button.is-copied { background: var(--vi-accent); border-color: var(--vi-accent); color: #12251a; transform: translateY(-2px); }
@media (max-width: 767px) {
  .vi-article-grid { grid-template-columns: 1fr; }
  .vi-share { position: static; flex-direction: row; order: 2; justify-content: center; }
}
.vi-prose { min-width: 0; font-size: 1.07rem; line-height: 1.85; color: var(--default-color); }
.vi-prose > * { margin: 0; }
.vi-prose > * + * { margin-top: 1.15em; }
.vi-prose h2 { font-family: var(--heading-font); font-size: clamp(1.4rem, 2.8vw, 1.8rem); font-weight: 800; line-height: 1.25; color: var(--heading-color); margin-top: 2em; }
.vi-prose h3 { font-family: var(--heading-font); font-size: 1.25rem; font-weight: 700; line-height: 1.3; color: var(--heading-color); margin-top: 1.7em; }
.vi-prose h4 { font-size: 1.05rem; font-weight: 700; color: var(--heading-color); margin-top: 1.5em; }
.vi-prose a { color: var(--heading-color); text-decoration: underline; text-decoration-color: var(--vi-accent); text-decoration-thickness: 2px; text-underline-offset: 3px; }
.vi-prose a:hover { text-decoration-color: var(--vi-accent-strong); }
.vi-prose ul, .vi-prose ol { padding-left: 1.3em; }
.vi-prose li + li { margin-top: .4em; }
.vi-prose li::marker { color: var(--vi-accent-strong); }
.vi-prose blockquote {
  margin: 1.8em 0; padding: .3em 0 .3em 1.3em; border-left: 4px solid var(--vi-accent);
  font-size: 1.15rem; font-style: italic; color: var(--heading-color);
}
.vi-prose img { max-width: 100%; height: auto; border-radius: var(--vi-radius); }
.vi-prose figure figcaption { font-size: .85rem; color: var(--vi-muted); text-align: center; margin-top: .5rem; }
.vi-prose iframe { display: block; width: 100%; height: auto; aspect-ratio: 16 / 9; border: 0; border-radius: var(--vi-radius); }
.vi-prose code { background: var(--vi-raised); padding: .1em .35em; border-radius: 6px; font-size: .9em; }
.vi-prose pre { background: var(--vi-raised); padding: 1rem 1.2rem; border-radius: var(--vi-radius-sm); overflow-x: auto; font-size: .9rem; line-height: 1.6; }
.vi-prose pre code { background: none; padding: 0; }
.vi-prose table { display: block; width: 100%; overflow-x: auto; border-collapse: collapse; font-size: .95rem; }
.vi-prose th, .vi-prose td { border-bottom: 1px solid var(--vi-line); padding: .6rem .7rem; text-align: left; }
.vi-prose th { color: var(--heading-color); }
.vi-prose hr { border: 0; border-top: 1px solid var(--vi-line); margin: 2.4em 0; }